Doll-molding machine



S. RADIMAK.

DQLL MOLDING MACHINE.

APPucATloN HLED Nov. 28, 1919.

Pnd Nov. 16; 1920.

2 SHEETS-SHEET 1.

I N V EN TOR Steven Radl'ma/f S. RADIMAK.

DoLL MoLmNG MACHINE.

APPLICATION FILED NOV. 28. 1919.

Patented Nov. 16, 1920.

2 S HEETS-S HEET 2 11v VEN TOR. Steven adima/r TTORNEY.

UNITED sTATEs STEVEN RADIMAK, OF NEWARK, NEW JERSEY.

DoLL-MoLDING MACHINE.

Specification of Letters Patent. Patented NOV. 16, 1920.

Application filed November 28, 1919. Serial No. 341,221.

To all wlwm t may concern:

i Be it known that I, STEVEN RADIMAK, citizen of the United States, and resident of Newark, in the county of Essex and State of New Jersey, have invented certainrnew and useful Improvements in Doll-Molding Machines, of which the following is a specification.

This invention relates to machines for making dolls and is especially applicable to that type of vmachine which shapes doll halves under pressure from a loose granular composition.

The object of this invention is the provision of mechanism for molding doll halves at comparatively high speed. l

A further object of this inventlon is to provide means for quick drying of the dolls during the molding operation.

For the attainment of these and other objects, I employ the mechanism shown in the accompanying drawings, in which- Figure 1 is a plan View of my improved mechanism, showing the means for operating the die. i

F ig. 2 is a front view of the machlne.

iFig. 3 is a perspective view of the die- Operating cam.

Fig. 4 is a perspective view of a portlon of the mold or matrix showing the movable part of the mold, used forseparating the molded doll from the matrix.

Fig. 5 is a perspective view of the major part of my improved machine showing the means for separating the doll from the mold.

In the practical embodiment of my in- Vention, the table 1 supports the mold plate 2, in which are cut the molds or matrices 3, 'suitable for molding half of a doll. The die plate 6, carrying dies attached thereto but not shown, which conform to the shape of the mold and are of such size as to form a doll of the required thickness between said dies and said matrices, is supported by blocks 7 from. movable table 8, whereby openings 37 are provided above said dies. Blocks 4 of table 1 support plate 2, leaving openings 38 thereunder for pipes 5, whlch are provided with gas fuel through inlet pipe 9. Said pipes 5 lare provlded with suitable outlets for lighting the gas .to heat the matrices 3. Gas pipes 10, in opening 37, are supplied through inlet pipe 11 and have suitable outlets for lighting the gas to heat the dies.

Die table 8 has lugs 12 thereon adapted `mally in uppermost position.

For lowering said die tables and dies, a

o series of adjustable cams, mounted on shafts 25 and 26, is used, said shafts 25 and 26 being supported by arms 13. Each of said cams is composed of three separate cam parts, all of which, are of the` same Shape, the major portion of the'caml curv'e being circular. (Jams 16 and 17, Vbeing ,two of said main cam parts, are mounted on shafts .25 and 26 for rotation t'herewith and J are spa'cedapart, cam 18 being loosely mounted' on shafts 25 and 26 in the space between cams 16 and 17. Shaft 22 passes through a hole in cam 18, in whichcam it is free to rotate, and passes also through slots 19 in cams 16 and 17, teeth 20 being cut on one side of said'slots 19. Gears 21 are mounted on shaft 22 for rotation therewith and mesh with teeth 20 of cams 16 and 17. The end 24 of shaft 22 is made square to allow said shaft tol be rotated' by vmeans of a Vhand crank or wrench, whereby gears 21 are rotated causing cams 16 and 17 to move relatively to cam 18 for adjusting the length of the circular portion of the complete cam.. A thread is cut on that part of shaft 22 which projects beyond cam 16, nut 23 turning on said thread for tightening said nut against gear 21and cam 16 foripreventing rotation of the gear.A

On the ends of shafts 25 and 26 are mounted sprocket wheels 28 and 29 respectively connected by chain 30. Sprocket wheel 27 is mounted on'shaft 25 outside of time also for the removal of the dolls and.

for the addition of a new supply of composition to the matrices; The composition/ used is a loose granular mixture, such as a combination of sawdust with a binder.

For separating the molded doll from matrix 3, a pusher 40 comprising a portion of said matrix Figs. 4 and 5 is pivoted on shaft 39 in plate 2, and has crank 41 mountas follows: w

Die plate G'being in its highest position, the

ed on one end thereof. Said Crank is pivoted on the shafttat one end, while tenmal V position. hook arm 43, attached to plate-6 at 48, is provided for engaglng Crank 42 on the downward movement of said 'die plate 6 and for raising said Crank on the upper movement of said plate. i

The operation of my improved machine is composition is placed in the various matrices. Power being supplied to -motor 36,'

Worm 35 isrotated, thereby turning worm wheel i 34, sprocket wheel 32 and-there through Chain SaidV Chain operates sprocket Wheels 27 and ,28 onl shaft 25, and through said wheel 28 and Chain 30,-wheel 29 andshaft 26 are rotated. The cams on shafts and 26, having been adjusted by turningshaft 24 inthe :proper direction to increase ordecrease the size of the Circular segment of said cams, are operated by shafts 25 'and 26 and act to lower table 8 against the pressure of springs 15..` The Circumference of the circular segment of the adjusted Cam, determines the interval during which the dies are held stationary in matrices 8 for the drying out of the doll. On the down- Ward movement of table 8, arm 44 slides past Crank 41, the hook on said arm catching' underneath said Crank. The gas heaters 5 and 10` having been lighted, the dies and matrices are sufliciently hot so that the composition caught between the dies and matrices is not only compressed and molded into proper Shape, but at the same time is heated for quick drying time.

said Cams from table 8 allowing said table to rise under the action of Springs 15. Arm 44, on this upward movement, raises Crank 41 against the action of spring 42, whereby shaft 39 is rotated,pusher 40 raised,and the molded doll separated from the matrix. The dolls Can now be removed, a new supply of composition'put into the matrices, and the operation repeated as before.

lVhat I Claim is:

1. In a doll moldingl machine, the combination of a matrix for Vreceiving a .composition, a die for coaction withsaid matrix for Compressing and Shaping said composition, means for heating said matrix, means for heating said die, means for reciprocating said die, and automatic spring pulled rotatable means C'operating with means mounted on said die/for separating theA molded composition from said matrix on the upward reciprocation of said die;

2. In a' doll molding machine, the combination of means for molding a composition doll and means for separating said doll from said molding means, Comprising a shaft, a

pusher forming part of the molding means in its normal position mounted on said shaft, a-crank at the end of sald shaft and means for engaglng said Crank for rotatlng said 'pusher when said molding means 1s operiated.

3. In a doll molding machine, a matrix for receiving a composition, a die for Coaction with said matrix for Compressing `and Shaping. said composition into a doll, means for heating said matrix, means for heating said die, a cam for lowering said die into v said fmatrix, means for adjusting the length ofrthe clrcumferential edge of said cam for determlning the interval durlng which said 'die is held in said matrix, and means for Operating said Caml V v 4. Ina doll molding machine, the combination ofl a matrix for receiving a composition, a die for coaction with said matrix for Compressing and Shaping saidV composition into a doll, means for heating said matrix, means for heating said die, an adjustable cam for 'lowering said die: into said; matrix during a predetermined interval, and means for separating said doll from said matrix Comprising a shaft, a pusher forming part of said matrix pivoted on said shaft, a Crank at the end of said'shaft, andfan arm on said die for,V engaging said Crank on the down- Ward movement of said die and forpartly rotating said Crank on the upward move'- ment of said die. v f. I f

5. In a doll molding machine, the combination of a matrix for receiving a loose granular composition, a die for coaction with said matrix for Shaping and Compressing said composition into a doll between said matrix and said die,vmeansV for heating said matrix, means. for heating said die and a Cam designed to have the length of its circumferential edge adjustable for reCiprocating said die and for holding the matrix V and die in Coperative position for any predetermined interval for drying the doll.

6. In a -doll'molding machine, the Combination of a die and adjustable means for operating said die and for `holding said die stationary in its lowermost position comprising a revoluble shaft, two circular segmental cams mounted on said shaft in space relation with each other, a third Circular segmental 'z cam loosely mounted on said shaft between the two first mentioned cams, a shaftl mounted in said third Caml passing through slots in the other cams, gears on said last-mentioned shaft, teeth in said slotted Cams mes'hing with said gears, and means for loCking said gears.

7. In a doll molding machine, the combination of a matrix for receiving a 'composition, a die for coaction with said matrix for compressing and Shaping said composition into a doll, means for heating said matrix,

means for heating said die, adjustable means for Operating said die and fo1` holding said die stationary in its lowest position comprising a set of relatively movable oams and means for relatively adjusting said cams for changing the length of the ciroumferential Operating edgeof the resulting cam, and automatic means coperating With means on said die for separating the doll from said matrix on the upward reoiprocation o 10 said die.

Signed at N ewark, in the county of Essex and State of New Jersey, this 24th day of November, A. D. 1919.

STEVE RADIMAK. 

